ML19347D818
| ML19347D818 | |
| Person / Time | |
|---|---|
| Site: | 07105768 |
| Issue date: | 01/26/1981 |
| From: | BABCOCK & WILCOX CO. |
| To: | |
| Shared Package | |
| ML19347D817 | List: |
| References | |
| 18372, NUDOCS 8104130776 | |
| Download: ML19347D818 (2) | |
Text
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h CHAPTER 1.0 GENERAL INFORMATION 1.1
==
Introduction:==
This document represents a consolidated application for renewal of Certificate of Compliance 5768, for the Model BB-250 2 shipping container, used for the shipment of fissile material.
1.2 Package
Description:
1.2.1 Packaging 1.2.1.1 Model Number:
BB-250-2 1.2.1.2
Description:
Inner container is 11-1/2" ID,16-gauge steel cylinder, 63-1/2" long, with bolted and gasketed top flange closure and seal welded bottom plate.
Inner container is centered and supported in a 22-1/2" ID by minimum 74" long 16-gauge steel drum by 1/4" diameter spring steel rods and vermiculite. Maximum weight of packaging and contents is approximately 575 pounds.
1.2.1.3 Drawings:
The BB-250-2 packaging is constructed in accordance with Babcock & Wilcox Drawing 10-F-771 (included as Appendix A tothisapplication). The outer cover is secure by either a 12-gauge closure ring or, six (6) 1/2" diameter bolts or studs with nut. Westinghouse Electric Corporation Drawing C7108010 is included as Appendix B and U.S. Military Standard MS24347 is included as Appendix C to this application.
1.2.2 Contents of Packaging:
~
Application is made for the following categories of contents:
1.2.2.1 Bulkuraniumo'ide(UO2 or U 0 ) powder with a maximum x
38 density of 2 g U/cc and enriched to a maximum 4 w/o in the U-235 isotope. The maximum H/U atomic ratio, con-sidering all sources of hydrogenous material within the inner container shall not exceed 1.13. The inner container has dimensions of 9-3/4" diameter x 12".
1-1 "WW 8104 3 g 9
o CHAPTER 2.0 STRUCTURAL EVALUATION 2.1 Strntural Design This section provides the structural design and evaluation for the contents described in Sections 1.2.2.1,1.2.2.2,1.2.2.3a, and 1.2.2.4 of this application.
2.1.1 Discussion This package utilizes design concepts which are similar to those used in the design of the NUMEC LA-36 and Pu-10-1 packages. The outer shell consists of two 16 gauge 22.5" diameter (nominal) steel drums welded end-to-end to form a package approximately 74" long..The inner container is an 11.5 diameter (maximum),16 gauge (nominal) steel cylinder i
with a flanged closure consisting of a 1/2 inch thick l
(minimum) bolted flange and flange cover. A minimum of six 1/2"-13 NC bolts are used to seat a 1/8 inch thick Anchor Packing Company " Target" or ".125" gasket which is provided to assure a leak-tight closure. Vermiculite is used to provide thermal and mechanical insulation for the gasketed inner container which is positioned with a minimum of 12 steel spring spacers. The top insulation plug may be fabricated.of Unibestos. At least 5 inches of vermiculite insulates the inner container from the drum, except at the bottom where its thickness may be 4 inches.
(1) The i
j maximum weight of the packaging and contents is approximately 575 pounds.
2.2 General Standards (2) 2.2.1 Positive Closure The outer cover is secured by either a 12-gauge bolted closure ring or six (6) 1/2" diameter bolts or studs with nut.i 2.2.2. Lifting Devices No lifting devices are incorporated as a structural part of the package or its lid.
2.2.3 Tie Down Devices l
No tie down devices are incorporated as a structural part of the package.
2.2.4 Structural Standards for Large Quantity Packaging l
Not applicable.
2-1 January 26, 1981
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